ADTRAN AHT1U Installation & Maintenance

LOW VOLTAGE ASYNCHRONOUS HTU-C LINE CARD
CONTENTS
1. GENERAL ............................................................................ 1
2. APPLICATIONS .................................................................. 3
3. INSTALLATION .................................................................. 4
4. CONTROL PORT OPERATION ......................................... 6
5. ALARMS ............................................................................ 13
6. HDSL DEPLOYMENT GUIDELINES ............................. 16
7. TROUBLESHOOTING PROCEDURES .......................... 17
8. MAINTENANCE ............................................................... 17
9. PRODUCT SPECIFICATIONS ......................................... 17
10. WARRANTY AND CUSTOMER SERVICE ................... 18
Appendix A. HDSL LOOPBACKS ......................................... A-1
FIGURES
Figure 1. ADTRAN AHT1U .................................................. 1
Figure 2. HTU-C Span Powering Diagram ........................... 3
Figure 3. Deployments from a Litespan Channel Bank
Assembly ................................................................ 3
Figure 4. HTU-C Card Edge Connections ............................. 4
Figure 5. RS232 (DB9) Connector ........................................ 6
Figure 6. HDSL Main Menu Screen ...................................... 9
Figure 7. Current System Status, HRE Dual Loop Screen ... 9
Figure 8. Current System Status, Dual Loop Screen ........... 10
Figure 9. HRE Performance History, Dual Loop Screen .... 10
Figure 10. Performance History, Dual Loop Screen ............. 11
Figure 11. ADTRAN Information, Dual Loop Screen .......... 11
Figure 12. Loopback Options, Dual Loop Screen ................. 12
Figure 13. Provisioning Screen .............................................. 12
Figure 14. Troubleshooting, Dual Loop Screen .................... 13
Figure 15. HDSL Deployment Guidelines ............................ 15
Figure A-1. HDSL Loopback Points ...................................... A-1
Figure A-2. Element State Diagram ....................................... A-1
TABLES
Table A. Screen Abbreviations ................................................. 6
Table B. Provisioning Options ............................................... 14
Table C. LED Alarms ............................................................. 15
Table D. TL1 Alarm Conditions ............................................. 15
Table E. HDSL Loss Values .................................................. 16
Table F. Loop Insertion Loss Data ........................................ 17
Table G. Worksheet PW-1 Replacements .............................. 17
Table H. Power Parameters for Replacements to
Worksheet PW-1 ...................................................... 17
Table I. Troubleshooting Guide ............................................ 18
Table J. ADTRAN AHT1U Specifications ........................... 19
Table A-1. HDSL Loopback Control Codes ........................... A-2
61245002L6-5C
ADTRAN AHT1U
FOR DSC COMMUNICATIONS CORPORATION
LITESPAN ® CHANNEL BANK ASSEMBLIES
INSTALLATION/MAINTENANCE
Section 61245002L6-5, Issue 2
Trademarks: Any brand names and product names included in this document are
trademarks, registered trademarks, or trade names of their respective holders.

Figure 1. ADTRAN AHT1U

1. GENERAL
The ADTRAN Low Voltage asynchronous Litespan
HDSL Transceiver Unit for the Central Office
(HTU-C) list 6, is a DS1 interface unit that provides
full T1 service over 4-wire interface facilities. The
Low Voltage Litespan HTU-Cs combine ADTRAN
HDSL technology and DSC Litespan technology to
provide an HDSL interface to a Litespan system.
ADTRAN's Low Voltage Litespan HTU-C is
certified by DSC to safely operate in Litespan 2000
and Starspan systems. The unit is licensed under the
Asynchronous High-bit-rate Digital Subscriber Line
TI Interface Unit (AHT1U) channel unit type.
Figure 1 is an illustration of the ADTRAN AHT1U.
Section 61245002L6-5C
Issue 3, February 2001
CLEI Code # SLL110XHAA
H T U -C
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